Janet Duncan, FCAS, FSA, MAAA

  • Tamim has considerable experience in delivering strategic and tactical business information to the health care and insurance industry in the Commercial, Medicaid and Medicare segments. His in-depth knowledge of health administrative, EMR, clinical, self-reported (HRA) and pharmacy data has driven innovations in methodology for Risk Adjustment, Disease Management, Case Management, Wellness/HRA, Gaps in Care, Preference Sensitive Conditions, Consumer Decision Support tools, alternative bundled payments, and Life Style Management Programs.
  • He has led informatics groups for CIGNA, United Healthcare and Aetna over the last 24+ years; and developed All-Payer Claims Database (APCD) for Connecticut while working in Connecticut’s Health Insurance Exchange.
  • Tamim has a PhD in Econometrics from University of Southern California (USC), Los Angeles, with a MBA in Healthcare Finance from University of Hartford, CT.

Andrew Mackenzie, ASA, MAAA​

  • Andrew consults with healthcare providers, payers, researchers, and vendors on managed care finances, experiment design and analysis, program outcomes evaluation, and predictive models for identification and stratification.
  • Before joining Santa Barbara Actuaries, Andrew was a Senior Actuarial Analyst in Health and Group Benefits at Willis Towers Watson. 
  • During his time as a Chairman's Fellow at Willis Towers Watson, Andrew led the firm's research in consumer choice as it relates to medical plan benefits and private exchanges.
  • Andrew has written publications for The Institute of HealthCare Consumerism, Willis Towers Watson, and sections in the Society of Actuaries. 

We are an actuarial and healthcare consulting firm specializing in cutting-edge predictive modeling and analytics. We use our skills and experience to help guide our clients to optimal decisions, interventions, and results.

Below is a list of our current core team. We also maintain relationships with many other clinical, legal, and programming experts that we leverage on a project by project basis to deliver maximum value to our clients.

Tamim Ahmed, PhD, MBA

  • Janet is a property-casualty actuary with many years experience in Workers' Compensation Insurance and Self Insurance. 
  • She was formerly the CFO of XL Capital (Europe) and the Senior Vice-President and Actuary responsible for reserving and financial reporting at CNA Insurance in Chicago.  
  • ​Janet is now a Visiting Professor at UCSB and sits on the SOA General Insurance Research Committee.


ian duncan, FSA, FIA, FCIA, FCA, MAAA

  • ​Qimeng is a healthcare statistician at Santa Barbara Actuaries.
  • ​Some of his related research includes:
    • Predictive Modeling in Healthcare Using Regression Techniques
    • Indian Diabetes Test Analysis
    • Financial Forecasting of Monthly Sales for Retail and Food Services

Nhan Hyunh​, MA

  • Ian has extensive experience of care management program operations and evaluation. He has published about 50 peer-reviewed studies of care management program outcomes and associated predictive models. 
  • Ian founded Solucia Consulting (now SCIO) in 1998 and was President of the company for 12 years. After leaving SCIO, he led Clinical Outcomes and Analytics at Walgreens. Ian is now a Professor at UCSB and the President and Founder of Santa Barbara Actuaries. 
  • He is the author of Healthcare Risk Adjustment and Predictive Modeling and Managing and Evaluating Healthcare Intervention Programs.
  • Ian has been a member of numerous Boards of Directors including the Society of Actuaries and the Massachusetts Health Insurance Connector Authority.
  • ​Nhan is a research analyst intern at Santa Barbara Actuaries. She is concurrently pursuing her PhD in Statistics and Applied Probability at UCSB with a research emphasis in Biostatistics. ​Most of her projects are related to medical data, CMS risk adjustment, and health predicting modeling. 
  • ​While a Master's student in Actuarial Science, Nhan was a Teaching Assistant for multiple statistics courses, including Design and Analysis of Experiments, Mathematics of Fixed Income Markets, and Actuarial Statistics​.

Qimeng Zhang, MA